What qualities make an ally useful in coalition warfare, and when is an ally more trouble than it's worth? Allies That Count analyzes the utility of junior partners in coalition warfare and reaches surprising conclusions.

In this volume, Olivier Schmitt presents detailed case-study analysis of several US allies in the Gulf War, the Kosovo campaign, the Iraq War, and the war in Afghanistan. He also includes a broader comparative analysis of 204 junior partners in various interventions since the end of the Cold War. This analysis bridges a gap in previous studies about coalition warfare, while also contributing to policy debates about a recurring defense dilemma. Previous works about coalition warfare have focused on explaining how coalitions are formed, but little attention has been given to the issue of their effectiveness. Simultaneously, policy debates, have framed the issue of junior partners in multinational military operations in terms of a trade-off between the legitimacy that is allegedly gained from a large number of coalition states vs. the decrease in military effectiveness associated with the inherent difficulties of coalition warfare. Schmitt determines which political and military variables are more likely to create utility, and he challenges the conventional wisdom about the supposed benefit of having as many states as possible in a coalition. Allies That Count will be of interest to students and scholars of security studies and international relations as well as military practitioners and policymakers. Olivier Schmitt is an associate professor in the Department of Political Science and Public Administration and a member of the Center for War Studies, both at the University of Southern Denmark. He is also a reserve officer in the French navy, the scientific director of the French Association for War and Strategic Studies (AEGES), the editor of Raymond Aron and International Relations, and has authored three books published in France.

Reviews
"Through a clear theoretical development and thorough case study analysis, Schmitt advances what we know about coalition warfare in the modern era. The book promises to be valuable reading for academics who study multilateralism but also practitioners interested in how best to harness the potential of alliances."—Sarah Kreps, Associate Professor of Government and Adjunct Professor of Law, Cornell University